html,body,ul,dl,dt,dd,p,ol,h1,h2,h3,h4,h5,h6,form,img,table,fieldset,legend,figure,figcaption,nav,input,div,a{margin:0; padding:0;}
ul,li,ol{list-style:none;}
img,fieldset{border:0; }
img,a{display:block;}
a{text-decoration:none; color:#333;}
h1,h2,h3,h4,h5,h6{font-weight:100;}
body{ font-family:"微软雅黑";}
em{font-style: normal;}


html,body{
    height: 100%;
    
}